The following account was recorded in the agent's log during your transmission: A retro-futuristic, abandoned monorail system stretches through a kilometers-long, self-sustaining biodome filled with lush rainforest greenery. Like, air's humid and thick with the scent of wet earth, and the only sound is the distant hum of machinery maintaining the internal climate, the sky above a diffuse bright white from the dome's illumination system. For some reason, massive crystalline growths are gradually assimilating parts of the monorail, seamlessly integrating metallic and organic structures, while umm, still maintaining a vacuum seal. Water droplets are suspended mid-air along the tracks.